It's a pity that you didn't answer that inclined friction problem that I presented to you around September 2013. Maybe you shied away from this difficult problem? Anyways, I went through with it, and now I can solve these types of Newtonian physics problems through the use of two methodologies.

What if our "universe" is actually just a 'galaxy of galaxies' in a space that is much, much larger than we currently imagine it? Is that possible? Would the other 'galaxies of galaxies' make up for all that dark matter? Could an event like the big bang happen in our region of space and not effect other regions?